Home / 681,771.54-1,022,657.28-208,456.86

Finding the Fourth Proportional to 681,771.54, 1,022,657.28 and 208,456.86

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Solution

The fourth proportional to 681,771.54, 1,022,657.28 and 208,456.86 is: 312,685.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,771.54 : 1,022,657.28 = 208,456.86 : x
  2. Step 2: Convert to fraction form
    681,771.54/1,022,657.28 = 208,456.86/x
  3. Step 3: Cross multiply
    681,771.54x = 1,022,657.28 × 208,456.86
  4. Step 4: Simplify right side
    681,771.54x = 213,179,925,444.94
  5. Step 5: Solve for x
    x = 213,179,925,444.94/681,771.54
  6. Step 6: Final answer
    x = 312,685.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.